diff options
Diffstat (limited to 'stdio-common')
| -rw-r--r-- | stdio-common/printf_fp.c | 8 | ||||
| -rw-r--r-- | stdio-common/tfformat.c | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/stdio-common/printf_fp.c b/stdio-common/printf_fp.c index 9b796ea..6e5ff58 100644 --- a/stdio-common/printf_fp.c +++ b/stdio-common/printf_fp.c @@ -793,7 +793,7 @@ ___printf_fp (FILE *fp, else { /* This is a special case. We don't need a factor because the - numbers are in the range of 0.0 <= fp < 8.0. We simply + numbers are in the range of 1.0 <= |fp| < 8.0. We simply shift it to the right place and divide it by 1.0 to get the leading digit. (Of course this division is not really made.) */ assert (0 <= exponent && exponent < 3 && @@ -1013,6 +1013,12 @@ ___printf_fp (FILE *fp, { *wstartp = '1'; exponent += expsign == 0 ? 1 : -1; + + /* The above exponent adjustment could lead to 1.0e-00, + e.g. for 0.999999999. Make sure exponent 0 always + uses + sign. */ + if (exponent == 0) + expsign = 0; } else if (intdig_no == dig_max) { diff --git a/stdio-common/tfformat.c b/stdio-common/tfformat.c index 259e2e0..d67b3b5 100644 --- a/stdio-common/tfformat.c +++ b/stdio-common/tfformat.c @@ -4021,6 +4021,8 @@ sprint_double_type sprint_doubles[] = {__LINE__, 0.000098, "0.0001", "%#.0g"}, {__LINE__, 0.0000996, "0.00010", "%#.2g"}, {__LINE__, 9.999999999999999e-05, "0.0001", "%g"}, + {__LINE__, 1.0, "1.000000e+00", "%e"}, + {__LINE__, .9999999999999999, "1.000000e+00", "%e"}, {0 } |